21520512180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{119558401}}^1$

素因数の和:119558416

約数の個数: 36

約数和(自身を含む): 65278887492

約数和(自身を除く): 43758375312

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 119558401, 239116802, 358675203, 478233604, 597792005, 717350406, 1076025609, 1195584010, 1434700812, 1793376015, 2152051218, 2391168020, 3586752030, 4304102436, 5380128045, 7173504060, 10760256090, 21520512180]

約数ペア:

[(1, 21520512180), (2, 10760256090), (3, 7173504060), (4, 5380128045), (5, 4304102436), (6, 3586752030), (9, 2391168020), (10, 2152051218), (12, 1793376015), (15, 1434700812), (18, 1195584010), (20, 1076025609), (30, 717350406), (36, 597792005), (45, 478233604), (60, 358675203), (90, 239116802), (180, 119558401)]